Smoke-washer.



J. ALTENHOFEN.

SMOKE WASHER. APPLICATION FILED MAR 12, 1909.

942,430.: v Patented Dec. 7, 1909.

RAPHERS. wAsmuarou n c fflNTTE i i f anion.

JOHN ALTENHOFEN, OF RIQHLAND, IOWA.

SMOKE-WASHER.

Application filed March 12, 1909.

To all whom it may concern:

Be it known that I, JOHN ALTENHOFEN, a citizen of the United States,residing at tichland, in the county of Keokuk and State of Iowa, haveinvented a new and useful Smoke-Washer, of which the following is aspecification.

The objects of the invention are, generally, the provision, in amerchantable form, of a device of the class above mentioned, which shallbe inexpensive to manufacture, facile in operation and devoid ofcomplicated parts; specifically, the provision of a series ofwater-supply pipes adapted to be assembled with a smoke-stack wherebythe contents of the said pipes may be distributed within the said stack,effectively to cleanse the smoke therein; and of novel means foreffecting the distribution of the water with in the stack as it flowsfrom the supply pipes; other and further objects being made manifesthereinafter as the description of the invention progresses.

The invention consists in the novel construction and arrangement ofparts hereinployed to denote corresponding parts throughout the severalfigures of the drawmgs.

In the accompanying drawings :-Figure 1 shows my invention in sideelevation; Fig. 2 is a vertical transverse section, parts being shown inelevation; Fig. 3 is a transverse section upon the line AB of Fig. 2.

In carrying out my invention, I provide, primarily, a stack 1, which maybe of any form. In the present instance it is shown as circular intransverse section and flared at its lower extremity to form a pit 2.The upper extremity of the stack 1 is flared as denoted by the numeral3, and above this flared portion the stack may terminate in any suitablemanner not inconsistent with the removal of the sleeve 7, hereinafterde- Speoification of Letters Patent.

Patented Dec. '7, 1909.

Serial No. 482,988.

scribed, from the top of the stack. Above the pit 2 a pipe 9 pierces thewall of the stack 1 to provide a suitable inlet, whereby smoke may passinto the said stack.

Disposed upon the exterior of the stack 1 is a water supply pipe l,which may be attached to the pit 2 by means of a bracket 5. The upperextremity of the pipe 4: is laterally bent as denoted by the numeral 6and passes through the wall of the stack 1 in the flaring portion 3thereof. Mounted 1n the interior of the stack 1 at the upper end thereofis a sleeve 7. This sleeve 7 is of slightly larger diameter exteriorly,than the interior diameter of the stack 1, so that when the sleeve ispushed downward in the flaring portion 3 of the stack, an annular trough14: will be formed between the sleeve 7 and the wall of the flaringportion 3 of the stack. The sleeve 7 is provided with a series ofapertures 8 extending entirely around its periphery. I further provide,in carrying out my invention, an inner water supply pipe 10, designed tobe mounted, preferably axially, in the stack 1. The pipe 10 is retainedin place by means of radially extending brackets 11, which form bracesbetween the walls of the pipe 10 and the walls of the stack 1. The upperend of the inner supply pipe 10 is provided with a baffle-plate 12. Thisbafl'le-plate 12 may be of any form. In the form shown in the drawingsthe baffle-plate is dished or upwardly convexed. The water supply pipes4 and 10 may be connected with a hydraulic main, and the device operatedby means of an urban water supply system, or, if desired, pumps of anyapproved type may be provided for the flushing of the device.

In practical operation, supposing that the device is assembled as shownin Fig. 2, the water which passes upward through the pipe l will enterthe annular trough 14 which is formed by the sleeve 7 and the portion 3of the stack, and, passing inward through the apertures 8 in the sleeve,will trickle down the inner wall of the stack 1, and also be projectedin a plurality of separate streams toward the center of the stack 1. Thewater which passes upward through the pipe 10, passing out of the saidpipe 10 at its upper extremity, will impinge against the baffleplate 12,which, owing to its peculiar form, will deflect outward and downward themajor portion of the liquid which passes out of the pipe 10. A portionhowever of the contents of the pipe 10 will trickle down its exteriorsurface. 7

It will be seen that with the foregoing device, the smoke which passesinto the stack through the pipe 9 will pass upward between twoconcentric cylindrical walls, each of which is covered witha coating offalling water, and that the space between these two walls will besaturated with falling spray. The smoke when it finally leaves the stackat its upper end will be thoroughly cleansed from particles of carbonand other deleterious matter, and, whena boiler is equipped with a stackconstructed in accordance with 'myinvent'ion soft coal may be burned,even in the most densely populated localities.

12 maybe used alone, or in connection with the supply pipe 4, thebaffle-plate being removed. Likewise, the supply pipe 4 andthe sleeve 7may be employed to saturate the airin the interior of the stack withoutturn ing'on the water How in the supply pipe '10. However, the device asshown in Fig. 2 works tobest advantage whenboth'of'the supply pipes land'10 are filled with running water.

Any foreign matter which may be carried upward through the pipe and findlodgment within the trough '14 between the apertures 8 may readily beremoved'therefrom by raising the sleeve 7 in the stack 1, allowingsuch'foreign matter to drop downward into the'pit. When desired, theforeign matter washed from the smoke may be shoveled from the pit in acompact and viscous form.

It will be seen that the foregoing device, although simple inconstruction and easily manufactured by any skilled ironworker,furnishes a means whereby smoke may the upper end of thestack being soconstructed that the sleeve may be lifted out of I the stack at will,the sleeve being perforated If desired, the pipe 10 and the bathe-platecircumferentially and arranged to engage the lower end of the flaringportion of the stack in wedging relation to form a trough between thesleeve andthe flaring portion of the stack; a pipe axially mounted inthe stack; and a baffle-plate assembled with the upper extremity of thepipe and arranged to deflect the contents of the pipe downwardly tocontact with the jets proceeding from the perforations in the sleeve;and means for simultaneously supplying a liquid to the trough and to thepipe.

In testimony that I claim the foregoing as my own, I'have hereto afiiXedmy signature in the presence of two witnesses.

JOHN ALTENHOFEN.

Witnesses:

MIKE WALLERICI-I, Jr, J. M. STARR.

